Machine for folding packing and the like



'w. CROOKS MACHINE FOfi FOLDING PACKING AND THE LIKE Oct. 4,1927. 1,644,416

Filed Feb. 5, 1923 2 Sheets-Sheet 1 WIT/V586: I h/ i/fi Goa/{is I ay Jag). ea

J m/MES.

W.\CROOKS MACHINE FOR FOLDING PACKING AND THE LIKE Oct. 4, 1927. 1,644,416

Filed Feb. s, 1925 z'sheets-she t 2 4 i ii F/c 7. A76. 8.

23 4 2 Am 4 P76 I 4 //Y.V/Y7'0R mzwe'ss: F7 10. m ma 3,

Y By amma moons, weansmara, anne -ama e, As efm'rma e shimmer on Patented Oct, 4, 1 927.

we & avenge COMPANY, reimb rse r wsrt a 1 he -Emm for raansyrvaa a.

MA INE FOR mamas rzrckm'e AQTD -TH ELIKEQ Application filed-February 5, 192a. {serial-1'iwfemieaw 2- i Packing may consist ofoa comparatively long; and narrow duck and rubber'or l ke sheet folded back and forth on "itself. with the folds suitably united oncemented 5 pressed intosquare or rectangular fornr n cross-section thus providing strips of what is known as square duck land rubber packing. In the Inianuf-a'cture" of sueh packin-g the custom has been to fold thesheet by'hand, which of course'is expensiveand slow; g v The principal obj eet of the present invention-isto fold the strips and, if 'd'esired, consolid'ate the folded strips into square or' r'ec tangular form in cross-section: p To fold afstrip 1 0f the 1 character referred to :u o itself "by machinery presents difficulties among which reference may be made to the length of the-stri which neces sitates a continuous operati'onand to t-he V tendency of rolling machinery ,to cut o'r tear the-strip. My invention-mn pri es =in-ach'1i1- 'e'ry', which obviates {these I "difficulties and which will be first described and finally claimed-at the'end hereof;

In the description reference will "bemade to "the accompanying drawings illustrating one form efem'bodnneht of the invention but not the only form bf' embodiment of "the invent-fen and in which J Figure l is a top 'or plan view-with a hand wheel removed, '7 Fig.2 is'a side view. a I 'FFig. 3-is anend view, partlyin see-tum. "Figs. 4 and bare-fragmentary diagrammatic sectional views illustrating themed-e of operation. A, 7

FigfiGi's'fa view of-like character illustrating the folded fabric.

nel. h r

Fig, 8 is a sectional view diagrammatically illustrating a guide 1 Fig. 9 is a like v'ew illustrating a modlfication.'

Fig. 10 is a top or plan view of a guide, and e v Fig; 11 is a sectional view taken on theline 1111 of Figure 1. i

There are a series 'of circumferentially indicated at 1 and 2, between which the strip a of, appropriate fabric is fed and by whlch it is progressively folded first atthe center (see 1, Fig- 1 and Fig. 4:) and then at the the rolls'ofthe succeedingp'airsffromjthe grooves and ribs isi not:'--in all cases' esse'ntial for imparting to the folded fa Fig. 7 is a top or plan view of 'a feed funribbed and grooved rolls in pairs, generally e: ges .(seefigFigl and Fig. 5). I-he=rib s of one. roll of each spa-ir are disposed in the grooves ofjthe; otherv roll xofthe pair with space. (occup ed by aelportio'n of the fabric in Figs. 4 and 5) between the flaring walls wath whichth'e ribs and grooves-are pro v ded. -.The number of ribs and grooves increases fromfthe center or'center line-of the e series .of Pairs of QH'S toward the ends of f inlet-( right in Fig. 1) "to-the outlet 5 end; (left 1n 'F1g; 1) of the series. ;Thefribs and grooves of the -rolls of one pair are t aligned withthe I ribsand grooves of the-rolls of allthe-otheii pairs and hav ng refer'ence to thfe linej aa g Figs. =4 -and15, of the rolls of theseries, the

ribs. and grbo'vesincrease' in niunber toward the ends ofthe rolls progressively from pair i to Ipair, For-iexaniple ih Figlkl there are t hree ribsfand-grooves of- ;whie hi one is at the cen'ter husband" the "other w are at the. sides; of the first. In Fig. 5' the arrangement 1 ,is the :SaiHei'eXce'pt thatzt wo ribs snag-mov s are @attheIs'1'desor endsfo-ftlferollsglt iiiay be remarkedthat 1 the. I precise numb but I the progressive arrangement *by' which their number is inereasedffrom onefpair'of rolls to: the neit is important The bottoms of the grooves are *fi-ata-nd the sidewalls-are flar ng. The sidewalls-" of the ribs are also flaring b'ut' -their rims are comparatively sharp. The wheels. 22 and 3 and the guided endless bands 6r straps4'and 5 areafereen so'iiuatmg .the'rolds of that ricor' rectangular iinaero'ss' seeti on.

shafts 6 which carry the rolls. are mounted in spring pressedbearings 7 carried by a frame or table 8, and they are geared together through idlers 9 and to a power shaft 10. The Wheels 22 and 3 are driven'one by the shaft 10 and the other by a'shaft ll, and these shafts are geared together, and the shaft 11 and the gearon it are the means for connecting the gearing of the rolls'with 100 the power shaft 10. Bevel gearing 12 drives the belts 4L and 5 from the shaft 10, and the belts aretrained around the driven pulleys Q 13, the idler pulleys 14, and the adjustable belt tighteners 15, and betweenthefixed' parallel guides 16; The adjustment of the spring pressed bearin; 17 of the wheelsl22 and 3 can be effected y means of the hand 1 '7 v i of rolls.

a downfonto the table; i 29 is a funnel guide forfee'ding'"the strip to-the.-pair 1 Of 'IQllS.

23 is an adjustable guide for"directing the strip foldedby the pair 1 of rolls tothepair N i 24. is a guide for-"directing the; folded'strip tothe positively? driven endless V "gbandsqwhich, in connection with the guide l6, and the wheels; 22-1- and 3,asquare it 'or bring it to rectangular for-min"cross sect1on. 1 The guideyQi may assume eitheriof two, Lj"forms.j1 In the case of; an even number, of

folds it I 7 may o assume; ,the fixed rectangular formi shown' in Fig. v8,-"and;in the case of 20" I I form.diagrammaticallylindicaled'inFig; 9 at 24% in whichtheside, Wall25. is movable and V zmay-be spring pressed. c 7 o :1 ouse aavstrip is fed .b lweenzthe side guides J20 and.undergther'oller 21 through an uneven numberioffolds it may assume the the funnel 29 to theipair of rollsl. These fold thecenter part of the strip; as shown in I Figgl; andthis can be'successfullydone because, the edges of the strip are not confined andfcan be. drawn toward eaoh other, in fact 7 are somewhat drawn, toward each other by prevents the l artially fo the funnel'29 to provide the slack or fullness necessary for the foldiiig;1 The. guide :23

folding'and elivers it'to the pair 2' of rolls a 'which' byf folding the side portions of the 1 1 strip-"complete the ,folding'operatiom and the side portions-are free to move ,towardeach 'othe1j,.to,provide the necessary slacker-frills ness'.j,Theguide;24 ,(or in the case of the 7 modification) 24?. delivers the folded strip to the'endlesssbelts which carrying it through the fixed guides 16 and between the wheels '2 2 -and3, givesthe. stri the required con- V 451 solidationiand reota-ng air-form The dei; It'-'will lbe aa usf'a those 'skilled in the r "may require.

art to which the invention relates that modifications may be made in details of const-ructi0 n and arrangement without departing 3 from thespirit of the invention which is not limited asto'thosem'atters or otherwisethan as the prior art'an'd the appended claims Iclaiini v1. In a machine far} folding packa ing eombination of a Series Of Pairs of rollers of.

rollers and endless belts and their fixed guides for delivery from the rollers tothe wheels; a

.2. In a machine for folding packing the combination'of aseries of pairs of'rollers of circumferential groovesand ribs, a pair of which the rollers in succeeding pairs are ina 1 'creasmgly, and cumulatively provided-with k: I

pressure-wheels at the exitof the pairs of a for delivery from the rollers to thewheels,

and side guides and a roll and a funnel guide atthe entrance of the series of-rollers. 3. In a machine for folding packing the rollers, endles'sbelts and their fixedguides combination of a series of pairs of rollers of circumferential grooves and v ribs,- a pair" of rollers endless belts-andtheir fixed guides guidesat the entrance and exit of the last pair of rollers intheseries.

4. A machine for folding packing and the rollers in pairs, the ribs andgrooves 011 the second palr of rollers correspondlng inalign- 'ment with the ribs and grooveson the first "pair of rollers plus additional ribs and LLIAM IYORQOKS! fwhich the rollers in succeeding pairs arein-f V cre'asingly and cumulatively provided with I so I pressure wheels atthe exit ,of the pairs of strip :from 2 un-, vfor-delivery from the rollers to thewheels,

side guides and aroll and a-funnel guide at the' entrancefoffthe series of rollers, and 85 V 

